Why did Kalor claim EVEN night commuter, though? He had no real incentive to do that.
I mean, he had incentive to claim, he was leading in votes. But claiming even night commuter didn't really make any sense, because Scrafty had already claimed cop, and was obviously going to be night killed that night. By all means, if Kalor had been town, he would have claimed odd night commuter, so scum would have been more fearful to target him in N3. Instead he claimed Even night commuter... but why?
It's possible, that Scum was going to let Scrafty live for D3, since she was most likely going to check weemadarthur (since godfather and all). So town would have been confused in D3 why both Scrafty and Kalor were both alive. The solution? Claim even night commuter, so Kalor wouldn't need to explain why he was alive today.
Obviously that plan would have failed with Weemad dying, but then scum just killed Scrafty, and Kalor didn't need to explain anything.